Light from Schwarzschild Black Holes in de Sitter expanding universe

Abstract

A new method is applied for deriving the redshift and shadow of a Schwarzschild black hole moving freely in the de Sitter expanding universe as recorded by a co-moving remote observer. This method is manly algebraic focusing on the transformation of the conserved quantities under the de Sitter isometry relating the black hole proper co-moving frame to observer's one. Hereby one extracts the general expressions of the redshifts and shadows of the black holes having peculiar velocities but their expressions are too extended to be written down here. Therefore, only some particular cases and intuitive expansions are presented while the complete results are given in an algebraic code on computer \cite{Comp}.

arXiv comment24 pages, 3 figs

References in corpus (38)

• First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
• First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole
• Viewing the Shadow of the Black Hole at the Galactic Center
• Schwarzschild black hole lensing
• The geometry of photon surfaces
• Shadows of Kerr black holes with scalar hair
• Testing the rotational nature of the supermassive object M87* from the circularity and size of its first image
• Relativistic images of Schwarzschild black hole lensing
• Time delay and magnification centroid due to gravitational lensing by black holes and naked singularities
• Photon Regions and Shadows of Kerr-Newman-NUT Black Holes with a Cosmological Constant
• Shadow of rotating regular black holes
• Hunting for extra dimensions in the shadow of M87*
• Shadow and Deflection Angle of Rotating Black Holes in Perfect Fluid Dark Matter with a Cosmological Constant
• Ultra Light Boson Dark Matter and Event Horizon Telescope Observations of M87*
• Black hole shadow in an expanding universe with a cosmological constant
• Silhouette of M87*: A new window to peek into the world of hidden dimensions
• Black Hole Surrounded by a Dark Matter Halo in the M87 Galactic Center and its Identification with Shadow Images
• Measuring the Kerr spin parameter of regular black holes from their shadow
• Photon Regions and Shadows of Accelerated Black Holes
• Shadow of a Spinning Black Hole in an Expanding Universe
• Concerns regarding the use of black hole shadows as standard rulers
• EHT constraint on the ultralight scalar hair of the M87 supermassive black hole
• Light escape cones in local reference frames of Kerr-de Sitter black hole spacetimes and related black hole shadows
• Shadow of a black hole at cosmological distance
• Looking for ultralight dark matter near supermassive black holes
• Intrinsic curvature and topology of shadows in Kerr spacetime
• A study on black hole shadows in asymptotically de Sitter spacetimes
• Evolution of black hole shadow in the presence of ultralight bosons
• Testing the equivalence principle via the shadow of black holes
• A revisit of rotating black hole shadow with astrometric observables
• First analytical calculation of black hole shadow in McVittie metric
• Light-bending in Schwarzschild-de-Sitter: projective geometry of the optical metric
• Black hole shadow with a cosmological constant for cosmological observers
• The physical meaning of the de Sitter invariants
• Black hole shadow in the view of freely falling observers
• Rest frames and relativistic effects on de Sitter spacetimes
• de Sitter geodesics
• de Sitter relativity in central charts

Cited by in corpus (6)

• QED Effect on Black Hole Shadow
• Shadow of Kottler black hole in the presence of plasma for a co-moving observer
• Light from Reissner-Nordstrom-de Sitter black holes
• Kinematics in spatially flat FLRW space-time
• Null energy condition of dynamical black holes in spatially flat FLRW space-times
• Quantum theory of redshift in de Sitter expanding universe